Brake



Nov. 20,1923; 1,474,537

A. H. MANWARING BRA E Original Filed Deb. 23, 1920 Patented Nov. 2d, lh

ALBERT H. MANWABIING, OF MOBILE, PENNSYLVANIA, ASSIGNOR 0F ONE-HALF T0ROY A. MANWARING, 0F NOBLE, PENNSYLVANIA. I

Original application filed December 23, 1920, Serial No. 432,748.Divided and. this application filed November 22, 1922. Serial no.602,554.

T 0 all wh'om'z't may concern:

Be it known that I, ALBERT H. MANWAR- 'ING, a citizen of the UnitedStates, residing in Noble, Montgomery County, Pennsylvania, haveinvented a Brake (being a division of my application Serial No. 432,748,filed December 23, 1920), of which the following is a specification. Oneobject of this invention is to provide a simple, substantial, andcompact form of brake mechanism particularly, adapted for use'between anaxle and the fixed frame of a motor vehicle, together with suitablecontrollin means for governing the operation of said mechanism.

These objects and other advantageous ends I attain as hereinafter setforth, reference bein had to the accompanying drawings, in w ich,

Fig. 1 is a transverse vertical section, illustrating my invention asutilized for braking a wheel;

F ig. 2 is a vertical section on the line 2'2, Fig. 1; and

Fig. 3 is a transverse section on the line 3-3, Fig. 2.

In the above drawings 1 have shown my invention employed as a brakingdevice between an axle and the fixed frame pf a motor vehicle. For thispurpose I form a casing 1 integral with or connected to said frame andprovide it with any desired number of cylinders 2. In each of these ismounted a piston 3 which, through a rod 4 and link 5, is operativelyconnected to the strap 6 of an eccentric 7 fixed to the driving axle orlive shaft 8 on which is a motor vehicle wheel 9. As before, theopposite ends of the cylinder 2 are connected with a valve chamber 10through ports 11 and 12, and the flow of fluid through these ports iscontrolled by a rotary valve 13 in said chamber. r

In the present instance I have illustrated two cylinders 2 having theirpistons both connected to a single eccentric and have likewiseoperatively connected the two rotary valves 13 by a rod or shaft 14, inaddition connecting to one of said valves an arm 15 designed to beoperated by any suitable brake-controlling mechanism whose detailconstruction forms no part of the present invention. In this case, as inthat shown in my application No. 432,7 i8, filed December present formof the invention consists of a I Q pair of springs 16 connected betweenoppos tely projecting lugs on the strap 6 and simllar lugs projectinginwardly from the c' lindrical Wall of the casing. By operating the arm15, the valves connected thereto will be adjusted and vary the flow ofliquid toward and from the cylinders 2. As a consequence, any desiredbraking or retarding force may be applied to the wheel 9 as the slipbetween the clutch members is varied.

Itwill be understood that in the present case Ihave omitted the fluidreplenishing and safety valve attachments and have also shown the pistonas solid instead of provided with a valve-controlled passage through itsbody. In any case however the cylinders and their associated valvechests and ports are normally filled with liquid, in addition to whichthe casing structure 1 likewise contains li uid such as oil, lycerine orthe like,

refera ly' to the levfi indicated by the ine w-w.

I claim:

1. The combination in a brake of relatively fixed and rotatable members;a cylinder connected to one of said members; an eccentric connected tothe other member; a piston driven by the eccentric and operative in thecylinder; and a yielding connection between the eccentric and thecasing.

2. The combination in a brake of a rotary structure; a closedliquid-containing casing; a relatively fixed structure; a cylinder inthe casing; a piston operative in the cylinder; a mechanical elementactuated by the rotary member for reciprocating said piston; and anexternally controlled valve mechanism for controlling the passage ofliquid between the opposite ends of the cylinder.

3. The combination with a relatively fixed structure and a rotary wheelof a brake for said wheel comprising a liquid-containing casing; acylinder in said casing; a piston operative in the cylinder; aneccentric connected to the wheel; means for actuating the piston fromsaid eccentric; and valve mechanism for controlling the flow of fluidbetween the opposite ends of the cylinder when the piston isreciprocated. i

at. The combination in a brake mechanism of a liquid-containing casing;a rotary eccentric member therein; a plurality of cylinders mounted inthe casing; pistons operative in said cylinders respectively:

containing casing; her in said casing; a plurality of cylinders mountedin the casing; pistons for said cylinders connected to said eccentricmember; rotary valves respectively controlling the flow of liquid inthe. cylinders and mounted in axial alignment; a member operativelyconnecting the valves; and actuating means connected to one of thevalves.

7. The combination in a brake of a liquidcontaining casing; an eccent'icin said casing; a strap for said eccentric; a plurality of cylinders inthe casing; pistons for the cylinders respectively; means connecting thepistons with the eccentric; spring means yieldingly holding theeccentric in a definite position and valve mechanism for controlling thefiow of liquid in the cylinders.

ALBERT H. MANWARING.

a rotary eccentric memr

